Research progress on interfacial bonding between magnesium phosphate cement and steel: A review

• The formation and characteristics of the interface between MPC and steel are analyzed. • The interface bonding mechanism of MPC and steel from physical and phosphating effects is discussed. • The influences of MPC matrix, steel, and the environmental conditions on the interfacial properties between MPC and steel are reviewed. Extensive research has been conducted on the combined use of magnesium phosphate cement (MPC) and steel in recent years due to their superior properties. The interface bonding property of MPC and steel is the key factor determining whether the advantages of both MPC and steel can be exerted. This paper analyzes the formation and characteristic of the interface between MPC and steel, and the interface bonding mechanism from physical and phosphating effects is discussed. The influences of the strength and density of MPC matrix, the shape, size, and surface treatment of steel, and the environmental conditions on the interfacial properties between MPC and steel are reviewed. This paper will provide a theoretical foundation and research basis for studying the influential factors on the interface between MPC and steel, the bonding mechanism and its application in practical engineering.